24K BTU Complete System
MRCOOL® 24k DIY 5th Generation Bundle - includes Condenser, Air Handler, DIY® Quick Connect® Line Set, DIYPRO® Cable, and Remote - 230v
Model: DIY-24-HP-WM-230D25-O
- Condenser
- Air Handler
- DIY® Quick Connect® Line Set — 25 ft, pre-charged
- DIYPRO® Cable
- Remote
- Free shipping to the lower 48 · tracking emailed
- 7-yr compressor / 5-yr parts warranty
- No vacuum pump or special tools
- Real install help from people who've done it
Overview
Who it's for: The 24K 230V system is a good fit for an open floor plan, large garage, or small cabin. It needs a dedicated 230V circuit.
What's in the box
- Outdoor condenser
- Indoor wall-mount air handler
- 25 ft Quick Connect® pre-charged line set
- DIYPRO® cable
- Remote and Wi-Fi smart controller kit
Key specs
| Size | 24K class |
|---|---|
| Voltage | 230V |
| SEER2 | Up to 22.7 |
| Coverage | About 750–1,000 sq ft |
| Line set | 3/8 × 5/8 in, 25 ft included |
| Refrigerant | R-454B |
| System model | DIY-24-HP-WM-230D25-O |
| Indoor model | DIY-24-HP-WMAH-230D25-O |
| Outdoor model | DIY-24-HP-C-230D25-O |
| UPC | 840255588560 |
Common questions
Will a 24K heat a small cabin?
It's sized for about 750–1,000 sq ft of open space. A mini split heats the space it's in, so closed-off rooms may need their own unit.
What breaker does it need?
MRCOOL lists 24 A minimum circuit ampacity and a 25 A maximum breaker on a dedicated 230V circuit. A qualified electrician should size the wire.
How far can the indoor and outdoor units be apart?
The line can run up to 75 ft with up to 75 ft of height difference, per MRCOOL's manual. The bundle includes 25 ft.
Can I extend the line set?
Yes, with a 3/8 × 5/8 in extension and the 24K/36K coupler kit.
More help: sizing guide, electrical guide, line set guide.
Shipping & returns
Free shipping to the lower 48. Orders are processed within 1–2 business days and we email tracking as soon as your order ships. See our Shipping Policy and Returns & Refunds.
Every complete single-zone system
It all mixes and matches.
Every unit here is MRCOOL® DIY® 5th Gen. These are the pieces that pair with this one.
This unit includes a 25 ft pre-charged line set. Only need more? Add an extension and a coupler kit.
Four steps. One weekend.
-
Hang the air handler
Level the wall plate, drill the pass-through, and hang the indoor unit.
Indoor -
Set the condenser
Place the outdoor unit on a pad or wall bracket with clearance to breathe.
Outdoor -
Connect the lines
Run the pre-charged Quick Connect® line set and tighten both ends with two wrenches.
Lines -
Power up
Hook up the dedicated circuit, pair the SmartHVAC app, done.
Power
Electrical hookup must follow local code.




